Would you like help with a legitimate Netflix technical issue instead?
From the naming pattern, this appears to be a file containing (likely session cookies or .txt cookie dumps) that are either expired, invalid, or flagged as "trash" (non-working). Such files are often shared or traded in certain online communities attempting to use stolen or shared account sessions to access Netflix without a valid subscription.
It looks like you're referencing a specific file name: tnzyl- NETFLIX COOKIES TRASH -149-.txt with a size of -1.08 KB (likely a typo, as negative kilobytes aren't possible; it's probably 1.08 KB).